Abstract

We propose and experimentally demonstrate a broadband slow-wave system in a surface-wave photonic crystal based on a non-uniform line-defect waveguide with graded metallic pillars, whose dispersions and cutoff frequencies vary gradually along the waveguide. Since the group velocity of designer surface plasmons at the cutoff frequencies is zero, we show that surface waves can be slowed and stopped at different positions under different frequencies. Experimental evidence including transmission measurements and direct near-field profile imaging performed in the microwave frequencies validate the stopping of surface waves in a broadband range within the forbidden bandgap of the surface-wave photonic crystal. This proposal is a promising candidate for slow-wave devices implemented on a single metal surface in both the microwave and terahertz frequency ranges.

© 2018 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Trapping surface plasmon polaritons on ultrathin corrugated metallic strips in microwave frequencies

Yan Yang, Xiaopeng Shen, Pei Zhao, Hao Chi Zhang, and Tie Jun Cui
Opt. Express 23(6) 7031-7037 (2015)

A 4-way wavelength demultiplexer based on the plasmonic broadband slow wave system

Yong Jin Zhou and Bao Jia Yang
Opt. Express 22(18) 21589-21599 (2014)

Design of subwavelength corrugated metal waveguides for slow waves at terahertz frequencies

Bowen Wang, Yi Jin, and Sailing He
Appl. Opt. 47(21) 3694-3700 (2008)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription